<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.Statement"%>
<%@page import="java.sql.Connection"%>
<%@page import="java.sql.DriverManager"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>查询数据库</title>
<style type="text/css">
h1{ color:red; }
</style>
</head>
<body>
<h1>显示成语数据库的前5条记录</h1><%
//加载驱动
Class.forName("com.mysql.cj.jdbc.Driver");
//建立连接
Connection cn=DriverManager.getConnection("jdbc:mysql://localhost:3306/db","root","12qwas");
//创建语句
Statement stat=cn.createStatement();
//执行查询获得结果集
ResultSet rs=stat.executeQuery("select cy from chengyu limit 5");
//遍历结果集所有记录并显示
while(rs.next()){
	String cy=rs.getString(1);
	out.println("<p>"+cy+"</p>");
}
//关闭资源
rs.close();
stat.close();
cn.close();
%>



</body>
</html>